From 0dc1276df57aa16b4f0eaecf54fb5cd8f00115c6 Mon Sep 17 00:00:00 2001
From: ubq323 <ubq323@ubq323.website>
Date: Sat, 4 Feb 2023 23:03:19 +0000
Subject: many many optimizations and refactorings; introduction of Map to
 support multiple chunks, modify worldgen and client drawing to support
 multiple chunks

---
 common/chunk.lua | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)

(limited to 'common/chunk.lua')

diff --git a/common/chunk.lua b/common/chunk.lua
index 1d3faa6..affdab8 100644
--- a/common/chunk.lua
+++ b/common/chunk.lua
@@ -1,9 +1,8 @@
 local json = require"common.dkjson"
 local class = require"common.class"
+local coords = require"common.coords"
 
-local CHUNK_SIZE = 64
-
--- for now tiles shall be booleans
+local CHUNK_SIZE = require"common.constants".CHUNK_SIZE
 
 local function index_ok(offq,offr)
 	return 0<=offq and 0<=offr and offq<CHUNK_SIZE and offr<CHUNK_SIZE
@@ -17,12 +16,15 @@ local function index(offq,offr)
 end
 
 local Chunk = class()
-function Chunk.make(cls,tiles)
-	return setmetatable({tiles=tiles},cls)
+function Chunk.make(cls,cp,tiles)
+	return setmetatable({cp=cp,tiles=tiles},cls)
 end
 function Chunk.at(self,hoffs)
-	if not index_ok(hoffs.q,hoffs.r) then return nil end
-	return self.tiles[index(hoffs.q,hoffs.r)]
+	return self:_atqr(hoffs.q,hoffs.r)
+end
+function Chunk._atqr(self,q,r)
+	if not index_ok(q,r) then return nil end
+	return self.tiles[index(q,r)]
 end
 function Chunk.set_at(self,hoffs,tile)
 	if not index_ok(hoffs.q,hoffs.r) then return end
@@ -30,17 +32,18 @@ function Chunk.set_at(self,hoffs,tile)
 end
 
 function Chunk.data_packet(self)
-	return json.encode{t="chunk",tiles=self.tiles}
+	return json.encode{t="chunk",tiles=self.tiles,u=self.cp.u,v=self.cp.v}
 end
 function Chunk.from_packet_data(packet)
 	-- assuming packet has already been json.decoded
 	-- since otherwise how would we know it's a chunk packet
-	return Chunk:make(packet.tiles)
+
+	local cp = coords.ChunkPos:make(packet.u,packet.v)
+	return Chunk:make(cp,packet.tiles)
 end
 
 return {
 	Chunk=Chunk,
-	SIZE=CHUNK_SIZE,
 	index=index,
 	index_ok=index_ok,
 }
-- 
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